The STM32F437xx and STM32F439xx devices are based on the
high-performance Arm® Cortex®-M4 32-bit RISC core operating at a
frequency of up to 180 MHz. The Cortex-M4 core features a Floating
point unit (FPU) single precision which supports all Arm®
single-precision data-processing instructions and data types. It
also implements a full set of DSP instructions and a memory
protection unit (MPU) which enhances application security.
The STM32F437xx and STM32F439xx devices incorporate high-speed
embedded memories (Flash memory up to 2 Mbyte, up to 256 Kbytes of
SRAM), up to 4 Kbytes of backup SRAM, and an extensive range of
enhanced I/Os and peripherals connected to two APB buses, two AHB
and a 32-bit multi-AHB bus matrix.
All devices offer three 12-bit ADCs, two DACs, a low-power RTC,
twelve general-purpose 16-bit timers including two PWM timers for
motor control, two general-purpose 32-bit timers, a true random
number generator (RNG) and a cryptographic acceleration cell. They
also feature standard and advanced communication interfaces.
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